Truck cab



FIG. 1 is a perspective view of a truck cab showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear elevation view thereof.

The broken lines shown are for illustrative purpose only and form no part of the claimed design. 

The ornamental design for a truck cab, as shown and described. 